You can still do it without getting into trouble. Just get some webspace in Russia or the like and nobody can touch you.
Good luck with that one! I suspect that may be a very risky venture. A handful of Russian Rubles should result in obtaining the offending IP addresses.
Never, ever risk posting anything malicious, defamatory or libellous unless you wish to dispose of a lot of money!
No name, no allegations, not even any "traceable rumours" or the thread gets binned!
I once knew of a CPL holder who logged PIC time on every airline he few on as a passenger. Fortunately he never got a flying job.....